68222828 has 12 divisors (see below), whose sum is σ = 119577360. Its totient is φ = 34057872.

The previous prime is 68222813. The next prime is 68222831. The reversal of 68222828 is 82822286.

It is a junction number, because it is equal to n+sod(n) for n = 68222791 and 68222800.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10448 + ... + 15671.

It is an arithmetic number, because the mean of its divisors is an integer number (9964780).

Almost surely, 2^68222828 is an apocalyptic number.

It is an amenable number.

68222828 is a deficient number, since it is larger than the sum of its proper divisors (51354532).

68222828 is a wasteful number, since it uses less digits than its factorization.

68222828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26776 (or 26774 counting only the distinct ones).

The product of its digits is 49152, while the sum is 38.

The square root of 68222828 is about 8259.7111329634. The cubic root of 68222828 is about 408.6108608773.

The spelling of 68222828 in words is "sixty-eight million, two hundred twenty-two thousand, eight hundred twenty-eight".